*{
    margin: 0;
    padding: 0;
}
ul{
    list-style: none;
}
.clear:after {
    display: block;
    content: "";
    clear: both;
}
.banner{
    position: relative;
    width: 1000px;
    height: 300px;
    margin: 50px auto;
    background: url("../images1/default.gif") no-repeat center #ccc;
    overflow: hidden;
}
.banner .bannerInner{
    position: absolute;
    width: 4000px;
    height: 300px;
    top: 0;
    left: 0;

}
.banner .bannerInner div{
    float: left;
    width: 1000px;
    height: 300px;
}
.banner .bannerInner div img{
    width: 100%;
    height: 100%;
    border: none;
    vertical-align: top;
    display: none;
    opacity: 0;
}
/*焦点圆圈*/
.banner .focusList{
    position: absolute;
    right: 20px;
    bottom: 20px;
}
.banner .focusList li{
    width: 18px;
    height: 18px;
    border-radius: 50%;
    float: left;
    margin-right: 3px;
    border: 2px solid #000;
    background-color: #fff;
    cursor: pointer;
}
.banner .focusList li.selected{
    background-color: red;
}
.banner .left ,.banner .right{
    display: none;
    position: absolute;
    width: 30px;
    height: 40px;
    top: 50%;
    margin-top: -20px;
    background: url("../images1/pre.png") no-repeat;
}
.banner .right{
    right: 0;
    background-position: -48px 0;
}